| 2025年 | 2026年 | 平年値 | |
| 8-14 | 26.9 | 28.4 | 27.2 |
| 8-15 | 27.8 | 28.4 | 27.5 |
| 8-16 | 27.7 | 28.9 | 27.1 |
| 8-17 | 25.6 | 28.5 | 26.8 |
| 8-18 | 26.8 | 28.7 | 27.4 |
| 8-19 | 26.6 | 28.6 | 27.6 |
| 8-20 | 27.7 | 28.4 | 27.3 |
| 8-21 | 27.7 | 28.7 | 27.6 |
| 8-22 | 27.3 | 28.7 | 27.7 |
| 8-23 | 28 | 29 | 27.5 |
| 8-24 | 27.8 | 29 | 27.5 |
| 8-25 | 27.7 | 28.8 | 27.6 |
| 8-26 | 26.8 | 29 | 27.3 |
| 8-27 | 26.5 | 29 | 27.4 |
| 8-28 | 26.5 | --- | 27.7 |